FreeFileViewer

What FreeFileViewer is

FreeFileViewer is a free Windows desktop app for viewing documents, spreadsheets, images, videos, and other files, as well as playing audio. Its maker says it supports more than 200 file types, and the listed format count is 217. For an unrecognized file type, the app can show a hexadecimal dump that can be inspected and printed. It can also print most supported document, spreadsheet, and image files. The product page lists Windows 10, 8, 7, Vista, and XP in both 32-bit and 64-bit versions. Bitberry Software says the installer includes everything needed, without requiring other software. Installation sets the app as the default viewer for supported file types that do not already have a default viewer. The license allows personal installation on computers the user owns or controls. The EULA says promotional information, advertisements, and third-party offers may appear during installation, in the product, and on the site. Audio and video playback uses FFmpeg and related libraries; FreeFileViewer itself is not open source. The maker directs users to an online contact form for enquiries and feedback.